CN109813085A - Vacuum belt drier - Google Patents
Vacuum belt drier Download PDFInfo
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- CN109813085A CN109813085A CN201711162242.0A CN201711162242A CN109813085A CN 109813085 A CN109813085 A CN 109813085A CN 201711162242 A CN201711162242 A CN 201711162242A CN 109813085 A CN109813085 A CN 109813085A
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Abstract
A kind of vacuum belt drier of the present invention includes dryness storehouse, belt conveyor, heating plate, vacuum pump set, discharge gate, gas-guide tube.Gas-guide tube one end is fixedly connected on the exhaust outlet of dryness storehouse, and the other end of gas-guide tube is fixedly connected on vacuum pump set；Discharge gate is installed in the inlet port and outlet port of dryness storehouse.Belt conveyor is mounted in dryness storehouse, and heating plate is mounted below the upper layer transport band of belt conveyor.The heat conducting pipe of the heating device of heating plate is straight tube, convenient for being removed by descaling equipment；Heat-conducting work medium prolonged thermally conductive heating inside heating plate will not generate scale grease.The heat-conducting medium for carrying thermal energy carries out heat conduction and heat radiation to the material on upper layer transport band by heating plate, thermal conversion efficiency is high and loss is small, improve thermally conductive heat transfer rate, the availability of the conduction heat exchange of thermal energy is high, the drying uniformity for improving material improves dry materials efficiency and optimization dry materials effect.
Description
Technical field
The present invention relates to a kind of band drier, especially a kind of vacuum belt drier.
Background technique
Band drier is a kind of vacuum dryer of continuous operation, and main heating method is band drier at present
Hot water, gas-vapor mix or other flowing heat mediums are passed through in the heating plate below transmission belt, material is in material transferring band
On, transmission belt is carried the heating zone that material successively passes through heating plate, adding in the heating plate below transmission belt by the speed of setting
Thermal medium (water, conduction oil) transfers heat to the material in transmission belt by heating plate, and material, which absorbs heat, steams its moisture
Hair, water vapour are taken away by vacuum system, and dryness storehouse is discharged in the material after drying, and entire drying process carries out in vacuum warehouse.Add
It, can shape on the plate body inside heating plate when heat-conducting medium (water, conduction oil) in hot plate flows thermally conductive in heating plate for a long time
At scale grease, the internal structure of heating plate is complicated, and the scale grease on the plate body of heating plate does not allow easy to clean scale removal, there is water
The heating plate of dirty grease will affect the conduction heat exchange of thermal energy.
Hot pipe technique is that one kind of the G.M.Grover invention of LosAlamos National Laboratory, the U.S. in 1963 is known as " heat
The heat transfer element of pipe ", it takes full advantage of the quick thermal transport property of heat-conduction principle and refrigeration working fluid, and heat-conducting work medium passes through
The heat of thermal objects is transmitted to outside heat source rapidly by " gas-liquid phase transition ", and the capacity of heat transmission is more than the thermally conductive energy of any known metal
Power.
Summary of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide a kind of vacuum belt drier.
The technical solution adopted by the present invention are as follows: a kind of vacuum belt drier includes dryness storehouse, belt conveyor, heating
Plate, vacuum pump set, discharge gate, gas-guide tube.
The dryness storehouse is drum type brake dryness storehouse or box dryness storehouse.
There are feed inlet, discharge port, exhaust outlet on the dryness storehouse.
Described gas-guide tube one end is fixedly connected on the exhaust outlet of dryness storehouse, and the other end of gas-guide tube is fixedly connected on very
On empty unit.
The vacuum pump set includes dust treatment device, condenser, vacuum pump.
One, dust treatment device plays the role of filtering the dust in moisture；The moisture generated when dry materials can be mingled with
Dust impurities in material, the dust in moisture can be adhered on the heat-exchanger rig of condenser, influence the condensation work of condenser,
Moisture after filtering dust can pass through the better UTILIZATION OF VESIDUAL HEAT IN of condenser.
Two, the moisture that gas and whens dry materials generate in the storehouse of dryness storehouse passes sequentially through at the dust of dust treatment device
Reason, by dust treated moisture enters condenser, it is wet caused by the dry in-bin drying that condenser plays condensation material
Gas after condensable gas is condensed into water in moisture, reduces a lot not the volume of condensable gas, can reduce vacuum pump in this way
Power, the thermal energy for condensing generation can also obtains again using achieving the effect that UTILIZATION OF VESIDUAL HEAT IN, energy-saving and emission-reduction.
Three, gas-guide tube is discharged by the pump drainage moisture of vacuum pump in condensed moisture.Vacuum pump extracts in the storehouse of dryness storehouse
The moisture generated when gas and dry materials.The moisture that gas and whens dry materials generate in the storehouse of dryness storehouse is through gas-guide tube transporting
Into in vacuum pump set, after moisture passes sequentially through the dust processing of vacuum pump set, condenser condensation, condensed moisture is in vacuum
Dryness storehouse is discharged under pump ground pump drainage.
Four, during vacuum belt drier material drying, relative pressure is -0.025Mpa in the storehouse of dryness storehouse
To -0.099Mpa.
Discharge gate is installed on the feed inlet of the dryness storehouse, discharge gate is installed on the discharge port of dryness storehouse.
One, the feed inlet of discharge gate is mounted on the discharge port of dryness storehouse, and discharge bucket is mounted on the discharging of discharge gate
On mouth.
Two, the discharge port of discharge gate is mounted on the feed inlet of dryness storehouse, and feed hopper is mounted on the charging of discharge gate
On mouth.
The feed hopper plays the role of finishing collecting bulk material, is passed in and out convenient for the material of bulk by discharge gate
Dryness storehouse；Wet stock passes through the promotion of elevator, conveyer belt, into the feed hopper at the discharge gate of the feed inlet of dryness storehouse
Spare, the wet stock in feed hopper passes through discharge gate into people's dryness storehouse.
The discharge gate is airlock and motor or wind stopping device and motor.
One, discharge gate plays the role of high airtight rotation conveying material, and discharge gate is in material in disengaging dryness storehouse
During play the role of top and the bottom air pressure partition lock gas, discharge gate play reduction dryness storehouse outside feed hopper in gas into
Enter the effect of the air inflow inside dryness storehouse.
Two, start discharge gate, the feed bin rotated in discharge gate can dynamic sealing rotary motion, do not stop continuously
Material is ceaselessly conveyed disengaging dryness storehouse by ground, and discharge gate maintains high airtight dynamic sealing during conveying material,
The gas reduced outside dryness storehouse enters the air inflow inside dryness storehouse, saves labor, sealing effect is good.
Three, there is the high airtight input and output material of discharge gate, feed inlet and discharging of the gas in dryness storehouse outside dryness storehouse
The air inflow entered inside dryness storehouse at mouthful is few, and the capacity of vacuum pump set has also been lacked very much, and making for vacuum pump set is reduced
Use power.
The belt conveyor is mounted in dryness storehouse, the belt conveyors of multiple groups by bracket successively above and below fixation
It is mounted on the warehouse of dryness storehouse.
There are 1-8 group belt conveyors in the dryness storehouse.
The belt conveyor belongs to the prior art, and belt conveyor includes transmission belt and transmission tape transport, passes
Defeated tape transport drives transmission belt movement.
The transmission belt be sheet metal production transmission belt metal mesh production transmission belt or other
The transmission belt of the high material production of thermal coefficient；The transmission belt of the high material production of thermal coefficient is passed convenient for thermal energy by transmission belt
It leads on material.
1-8 group belt conveyors are successively combined into one up and down.
The transmission belt of belt conveyor is the bilevel carry out rotary work of upper layer transport band and lower layer's transmission belt.
One, the upper layer transport band of uppermost belt conveyor carries material to be dried, and upper layer transport band rotates to one
When head, the material on upper layer transport band can be laid down, and the material laid down is by the distribution transporting of stock guide in adjacent belt conveying
On the upper layer transport band of machine, the transmission belt that such lower layer does not carry material continues cycling through under to be rotationally advancing.
Two, the upper layer transport band of belt conveyor above carry material to be dried successively by material be discharged at it is adjacent under
On the upper layer transport band of layer belt conveyor.
Three, the object after the material that the upper layer transport band of nethermost belt conveyor carries after drying is unloaded down, after drying
Dryness storehouse is discharged through the discharge gate on the discharge port of dryness storehouse by stock guide in material.
The heating plate, including top plate, bottom plate, side plate, heating device, thermally conductive item, heat-conducting work medium.
The heating plate is mounted in dryness storehouse, and heating plate is fixedly mounted on the warehouse of dryness storehouse by bracket.
The heating plate is mounted below the upper layer transport band of belt conveyor, and upper layer transport band pastes on hot plate
Face.
Dryness storehouse, heating dress are extended in thermal energy import, the thermal energy outlet of the heat conducting pipe of the heating device of the heating plate
The thermal energy import set, the heat conducting pipe in thermal energy exit and the warehouse junction of dryness storehouse are that fixing seal is air-locked.
The length of the heating plate is 2500-18500mm, and width is 300-1800mm, and thickness is 50-180mm.
The material that is fabricated to of the top plate, bottom plate, side plate is metal plate.
It is to have insulating layer heat preservation outside the bottom plate and side plate, the outside of bottom plate and side plate is not kept the temperature either
Layer.
The shape of the side plate is L-shape, and the plate face of side plate lower end folds into, and the upper end of side plate is straight shape.
The appearance of the bottom plate is V-shape, and the wedge angle of V-shape bottom plate is upward；When the inclination on bottom plate one side has
When the length of the plate face of the gradient is more than 500mm, it is stamped with reinforcing rib in the acclive plate face of the inclination of bottom plate, there is the bottom of reinforcing rib
Plate will not cause the protrusion or recess of bottom plate because of the high pressure negative pressure inside heating plate.
The lower end of the bottom plate is connected to one by four blocks of side plates and top plate；Four blocks of side plates of surrounding are successively
Be connected as one, the side plate that the lower end of bottom plate and four pieces of side plate lower ends fold into is connected to one, the lower end of bottom plate and
The junction of side plate lower end is a U-shaped groove.
The lower end of the bottom plate and the lower end of four blocks of side plates are connected to one, four sides of top plate and four blocks of side plates
Upper end be connected to one.
The heat-conducting work medium is in the inside of heating plate.
The heat-conducting work medium is water ether or composite work medium.
The thermally conductive item is fixed below top plate, and it is integrated that thermally conductive item is fixedly connected with top plate.
The thermally conductive item is metal strip, and the spacing of adjacent thermally conductive item and thermally conductive item is 30-180mm.
The thermally conductive item is to play the role of the effect thermally conductive to top plate, while also functioning to Strengthening Roof.
Anti- negative pressure, high pressure can be improved in the top plate for playing the role of thermally conductive item, has the top plate of thermally conductive item that can ensure top
Plate it is smooth, the protrusion or recess of top plate will not be caused because of the high pressure negative pressure inside heating plate.
The heat-conducting work medium is in the U-shaped groove of bottom plate lower end and the junction of side plate.
The heating device is mounted on the U of the junction of bottom plate lower end and side plate inside the heating plate of band drier
In connected in star.
The heating device is the heat conducting pipe for having fin, or the not heat conducting pipe of fin.
Thermal energy import, the thermal energy outlet of the heat conducting pipe of the heating device extend outside side panel, the thermal energy of heating device
The junction of import, the heat conducting pipe in thermal energy exit and side plate is that fixing seal is air-locked.
One, the heat-conducting medium for carrying thermal energy is entered in heating device by the thermal energy import of heating device, and heat-conducting medium is taken
The thermal energy of band is exported to the thermally conductive heating of heat-conducting work medium around heating device, thermally conductive rear heat-conducting medium by the thermal energy of heating device
Heating device is discharged.
Two, a hot recycle pump is installed in the thermal energy outlet of the heat conducting pipe of heating device, hot recycle pump can be improved thermally conductive
The circulation rate of medium increases the heat-conducting effect of thermal energy.
The heat-conducting medium is water conduction oil or steam.
The scale grease that the heat-conducting medium generates after flowing for a long time in heating device can be removed easily,
Because the heat conducting pipe of heating device is straight tube, convenient for being removed by descaling equipment.
The heat-conducting work medium takes full advantage of the quick thermal transport property of heat-conduction principle and refrigeration working fluid, heat-conducting work medium
The heat of heating device is transmitted to rapidly on top plate and thermally conductive item by " gas-liquid phase transition ", the capacity of heat transmission is more than any known
The capacity of heat transmission of metal；Heat-conducting work medium prolonged thermally conductive heating inside the heating plate of band drier will not generate scale oil
Dirt.
The heating plate is a gravity assisted heat pipe, and the inside of heating plate vacuumizes after having added heat-conducting work medium, do not heat
When heating plate inside relative pressure be -0.020Mpa to -0.098Mpa.
The top plate of the heating plate and thermally conductive item are the condensation segments of heat-conducting work medium, and heating device is the evaporation of heat-conducting work medium
Section.
One, heating device gives heat-conducting work medium to provide heat source, the heat-conducting work medium of liquid absorb heat be vaporizated into it is vaporous thermally conductive
Working medium, under small pressure difference, vaporous heat-conducting work medium rises at top plate.
Two, the thermal energy conduction that vaporous heat-conducting work medium carries conducts the thermal energy on thermally conductive item on top plate and thermally conductive item
By the conduction of thermally conductive item on top plate.
Three, the thermal energy that vaporous heat-conducting work medium carries by top plate to be attached to the material for transmitting and taking on top plate carry out it is thermally conductive
Heating, vaporous heat-conducting work medium release the heat-conducting work medium that liquid is condensed into after thermal energy.
Four, the heat-conducting work medium of condensed liquid is fallen under gravity to V on the top plate of heating plate and thermally conductive item
On the bottom plate of shape, the U-shaped that the heat-conducting work medium of liquid flows to side plate and bottom plate junction along the acclive plate face of bottom plate is recessed
Around heating device in slot, energy heats that the heat-conducting work medium of liquid is heated again on device and be vaporizated into vaporous lead
Hot working fluid.
Five, heat-conducting work medium loops back and forth like this thermally conductive heat exchange, and top plate will be in thermal energy conduction to the transmission belt for being attached to top plate
Material on, material obtained it is dry required for thermal energy, achieve the purpose that dry materials.
When band-type vacuum drier carries out drying materials work, the transmission belt of belt conveyor is that upper layer and lower layer are rotated
Work, above transmission belt carry material to be dried, conveying carries the upper surface of material to be dried transmission belt and is attached to the upper of top plate
Face carries the heat-conducting work medium of thermal energy by thermal energy conduction on top plate and thermally conductive item, heat radiation and heat transfer of the thermal energy by top plate
Heat-conducting mode carry out thermally conductive heating to the material to be dried carried in transmission belt above；The transmission belt for not carrying material exists
Pass through below bottom plate.
The energy consumption index of the conductive drying of vacuum belt drier is 2800-4000kj/kg, and convective drying is
4000—7500kj/kg；The thermal energy availability of convective drying generally only has 20-50%, and conductive drying theoretically may be used
With close to 100%, the thermal energy availability actually in vacuum belt drier can achieve 60-80%.It passes under normal circumstances
Drying is led than convective drying energy conservation 30-50%, this is because the conductive drying of vacuum belt drier does not need Hot-blast Heating object
Material is small by the thermal losses for being vented lost.
Dry under vacuum state of the material in dryness storehouse, when material constant rate of drying, reduces the boiling point of water, water in material
The vaporization boiling temperature divided is reduced to 35 DEG C -60 DEG C from 100 DEG C, and material heating is minimum, and heat almost all is used to evaporate wet
Point, when such as approaching or being less than critical moisture content, the power savings advantages of vacuum belt drier are bigger, improve thermal energy in this way
Availability reduces the total amount consumed of thermal energy.
The present invention has the advantages that compared with existing band drier: a kind of vacuum belt drier, thermally conductive Jie
The scale grease that matter generates after flowing for a long time in the heating device of heating plate can be removed easily, the heating of heating plate
The heat conducting pipe of device is straight tube, convenient for being removed by descaling equipment；Heat-conducting work medium prolonged thermally conductive heating inside heating plate
Scale grease will not be generated.The heat-conducting medium for carrying thermal energy carries out thermally conductive dissipate to the material on upper layer transport band by heating plate
Heat, thermal conversion efficiency is high and loss is small, improves thermally conductive heat transfer rate, and the availability of the conduction heat exchange of thermal energy is high, improves
The drying uniformity of material improves dry materials efficiency and optimization dry materials effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of vacuum belt drier of the invention；
Fig. 2 is the structural schematic diagram of the heating plate of vacuum belt drier of the invention；
Fig. 3 is the schematic cross-sectional view of the heating plate of vacuum belt drier of the invention.
In figure: 1, dryness storehouse, 2, belt conveyor, 3, heating plate, 4, vacuum pump set, 5, gas-guide tube, 6, discharge gate,
7, feed inlet, 8, discharge port, 9, upper layer transport band, 10, lower layer's transmission belt, 11, top plate, 12, bottom plate, 13, thermally conductive item, 14, plus
Thermal, 15, heat-conducting work medium, 16, side plate, 17, thermal energy import, 18, thermal energy outlet, 19, warehouse.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing:
A kind of vacuum belt drier as shown in Figure 1 includes dryness storehouse 1, belt conveyor 2, heating plate 3, and vacuum pump set 4 unloads
Expect valve 6, gas-guide tube 5.
The dryness storehouse 1 is box dryness storehouse.
There are feed inlet 7, discharge port 8, exhaust outlet on the dryness storehouse 1.
Described 5 one end of gas-guide tube is fixedly connected on the exhaust outlet of dryness storehouse 1, and the other end of gas-guide tube 5 is fixedly connected
On vacuum pump set 4.
The vacuum pump set 4 includes dust treatment device, condenser, vacuum pump.
Vacuum pump extracts the moisture that gas and whens dry materials generate in the storehouse of dryness storehouse 1；In the storehouse of dryness storehouse 1 gas and
The moisture generated when dry materials enters in vacuum pump set 4 through gas-guide tube 5, and moisture passes sequentially through the dust processing of vacuum pump set 4,
Condenser condensation, the discharge dryness storehouse 1 of vacuum pump pump drainage.
During vacuum belt drier material drying, relative pressure is -0.055Mpa in the storehouse of dryness storehouse 1.
Discharge gate 6 is installed on the feed inlet 7 and discharge port 8 of the dryness storehouse 1.
The feed inlet of discharge gate 6 is mounted on the discharge port 8 of dryness storehouse 1, and discharge bucket is mounted on the discharging of discharge gate 6
On mouth.
The discharge port of discharge gate 6 is mounted on the feed inlet 7 of dryness storehouse 1, and feed hopper is mounted on the charging of discharge gate 6
On mouth.
The discharge gate 6 is airlock and motor or wind stopping device and motor.
Discharge gate 6 plays the role of high airtight rotation conveying material, and discharge gate 6 is in material in disengaging dryness storehouse 1
During play the role of top and the bottom air pressure partition lock gas, discharge gate 6 play reduction dryness storehouse 1 outside gas enter dryness storehouse
The effect of air inflow inside 1.
Start the motor of discharge gate 6, the feed bin rotated in discharge gate 6 can dynamic sealing rotary motion, even
Continuous that material is ceaselessly ceaselessly conveyed to disengaging dryness storehouse 1, discharge gate 6 maintains high airtight move during conveying material
State sealing, the gas reduced outside dryness storehouse 1 enter the air inflow inside dryness storehouse 1, save labor, sealing effect is good.
There is the high airtight input and output material of discharge gate 6, feed inlet 7 and discharging of the gas in dryness storehouse 1 outside dryness storehouse 1
The air inflow entered inside dryness storehouse 1 at mouth 8 is few, and the capacity of vacuum pump set 4 has also been lacked very much, and vacuum pump set 4 is reduced
Use power.
The belt conveyor 2 is mounted in dryness storehouse 1.
3 groups of belt conveyors 2 are successively combined into one up and down.
3 groups of belt conveyor 2 by bracket successively above and below be fixedly mounted on the warehouse of dryness storehouse 1.
The belt conveyor 2 belongs to the prior art, and belt conveyor 2 includes transmission belt and transmission tape transport,
It transmits tape transport and drives transmission belt movement.
The transmission belt of belt conveyor 2 is that upper layer transport band 9 and the bilevel of lower layer's transmission belt 10 carry out rotation work
Make.
Such as Fig. 1, Fig. 2, heating plate 3 shown in Fig. 3, including top plate 11, bottom plate 12, side plate 16, heating device 14, thermally conductive item
13, heat-conducting work medium 15.
The heating plate 3 is fixed by the bracket on the warehouse 19 for being mounted on dryness storehouse 1.
The heating plate 3 is mounted below the upper layer transport band 9 of belt conveyor 2, and upper layer transport band 9 is attached to heating
The upper surface of top plate 11 of plate 3.
The heating device 14 is the heat conducting pipe for having fin, or the not heat conducting pipe of fin.
Dryness storehouse 1 is extended in thermal energy import 17, the thermal energy outlet 18 of the heat conducting pipe of the heating device 14 of heating plate 3, heats
The junction of the warehouse 19 of heat conducting pipe and dryness storehouse 1 at the thermal energy import 17 of device 14, thermal energy outlet 18 be fixing seal not
Ventilative.
The length of the heating plate 3 is 8500mm, and width is 1100mm, and thickness is 80mm.
The material that is fabricated to of the top plate 11, bottom plate 12, side plate 16 is metal plate.
It is to have insulating layer heat preservation, or there is no insulating layer on the outside of the bottom plate 12.
It is to have insulating layer heat preservation, or there is no insulating layer on the outside of the side plate 16.
The shape of the side plate 16 is L-shape, and the plate face of 16 lower end of side plate folds into, and the upper end of side plate 16 is straight shape.
The appearance of the bottom plate 12 is V-shape, and the wedge angle of V-shape bottom plate 12 is upward.
It is stamped with reinforcing rib on the bottom plate 12, has the bottom plate 12 of reinforcing rib will not be because of the high pressure inside heating plate 3
Negative pressure causes the protrusion or recess of bottom plate 12.
The lower end of the bottom plate 12 is connected to one by four blocks of side plates 16 and top plate 11；Four blocks of side plates of surrounding
16 are sequentially connected and are integrated, and the side plate 16 that the lower end of bottom plate 12 and four pieces of 16 lower ends of side plate fold into is fixedly connected as one
The junction of body, 16 lower end of lower end and side plate of bottom plate 12 is a U-shaped groove.
The lower end of the bottom plate 12 and the lower end of four blocks of side plates 16 are connected to one, four sides of top plate 11 and four
The upper end of block side plate 16 is connected to one.
The heat-conducting work medium 15 is in the inside of heating plate 3.
The heat-conducting work medium 15 is composite work medium.
The thermally conductive item 13 is fixed below top plate 11, and it is integrated that thermally conductive item 13 is fixedly connected with top plate 11；It leads
Hot item 13 is metal strip, and the spacing of adjacent thermally conductive item 13 and thermally conductive item 13 is 80mm.
The thermally conductive item 13 is to play the role of the effect thermally conductive to top plate 11, while also functioning to Strengthening Roof 11；Have
The effect of anti-negative pressure, high pressure can be improved in the top plate 11 of thermally conductive item 13, has the top plate 11 of thermally conductive item 13 can to ensure top plate
11 it is smooth, the protrusion or recess of top plate 11 will not be caused because of the high pressure negative pressure inside heating plate 3.
The heat-conducting work medium 15 is in the U-shaped groove of the junction of 16 lower end of 12 lower end of bottom plate and side plate.
The heating device 14 is mounted on 16 lower end of 12 lower end of bottom plate and side plate inside the heating plate 3 of band drier
Junction U-shaped groove in.
The heating device 14 is the heat conducting pipe for having fin, or the not heat conducting pipe of fin.
The thermal energy import 17 of the heat conducting pipe of the heating device 14 and thermal energy outlet 18 extend outside side panel 16, heating dress
Setting 14 thermal energy import 17, the heat conducting pipe at thermal energy outlet 18 and the junction of side plate 16 is that fixing seal is air-locked.
One, the heat-conducting medium for carrying thermal energy is entered in heating device 14 by the thermal energy import 17 of heating device, thermally conductive Jie
The thermal energy that matter carries passes through heating device 14 to the thermally conductive heating of heat-conducting work medium 15 around heating device, thermally conductive rear heat-conducting medium
18 discharge heating device 14 of thermal energy outlet.
Two, a hot recycle pump is installed in the thermal energy outlet 18 of the heat conducting pipe of heating device 14, hot recycle pump can be improved
The circulation rate of heat-conducting medium increases the heat-conducting effect of thermal energy.
The heat-conducting medium is water conduction oil or steam.
The heat-conducting work medium 15 takes full advantage of the quick thermal transport property of heat-conduction principle and refrigeration working fluid, thermally conductive work
The heat of heating device 14 is transmitted to rapidly on top plate 11 and thermally conductive item 13 by matter 15 by " gas-liquid phase transition ", and the capacity of heat transmission is super
Cross the capacity of heat transmission of any known metal；Heating plate 3 inside prolonged thermally conductive heating of the heat-conducting work medium 15 in band drier
Scale grease will not be generated.
The heating plate 3 is a gravity assisted heat pipe, and the top plate 11 and thermally conductive item 13 of heating plate 3 are the cold of heat-conducting work medium 15
Solidifying section, heating device 14 is the evaporator section of heat-conducting work medium 15.
The workflow of the drying materials of vacuum belt drier is as follows.
One, start belt conveyor 2, belt conveyor 2 starts rotary work.
Two, start discharge gate 6, discharge gate 6 starts rotary work, and the wet stock in feed hopper connects through discharge gate 6
Enter in dryness storehouse 1 to continuous ceaselessly high airtight conveying, material is advanced forward on the upper layer transport band 9 of belt conveyor 2
?.
Three, the heat-conducting medium after heating enters the inside of heating device 14 by the thermal energy import 17 of heating device 14；Add
Thermal 14 provides thermal energy to heat-conducting work medium 15, and the thermal energy conduction that heat-conducting work medium 15 carries is on top plate 11 and thermally conductive item 13, heat
It can be given simultaneously by the heat radiation of the top plate 11 of heating plate 3 and the heat-conducting mode of heat transfer to be dried on upper layer transport band 9
Material carries out thermally conductive heating simultaneously, and material, which has obtained thermal energy, to be dried；The transmission belt of material is not carried in belt type dry
Pass through below the bottom plate 122 of the heating plate 3 of dry machine.
Four, start vacuum pump set 4, vacuum pump set 4 starts to generate when the air and dry materials in pump drainage dryness storehouse 1 wet
Gas, relative pressure in 1 storehouse of dryness storehouse preferably -0.065Mpa；It is generated when air and dry materials in 1 storehouse of dryness storehouse
Moisture by gas-guide tube 5 by the vacuum pump of vacuum pump set 4 come pump drainage, powder of the moisture through dust processor that whens dry materials generates
The moisture condensation of dirt dust removal by filtration, condenser, filters condensed moisture and dryness storehouse 1 in vacuum pump is discharged under pump drainage.
Five, the thermal energy that moisture releases in the condensation process of condenser, can be with UTILIZATION OF VESIDUAL HEAT IN to the wet object in feed hopper
Material carries out preheating use.
Six, dryness storehouse is continuously ceaselessly discharged in the discharge gate 6 on the discharge port 8 that the material after drying passes through dryness storehouse 1
1。
Above embodiments are merely used to help understand production method and its core concept of the invention, and specific implementation is not limited to
In above-mentioned specific embodiment, those skilled in the art from the above idea, without creative labor, is made
Variation, all fall within protection scope of the present invention.
Claims (6)
1. a kind of vacuum belt drier, including dryness storehouse (1), belt conveyor (2), heating plate (3), vacuum pump set (4) unload
Expect valve (6), gas-guide tube (5)；It is characterized by: have feed inlet (7) on dryness storehouse (1), and discharge port (8), exhaust outlet；
Described gas-guide tube (5) one end is fixedly connected on the exhaust outlet of dryness storehouse (1), and the other end of gas-guide tube (5) is fixed to be connected
It connects on vacuum pump set (4)；The moisture that gas and whens dry materials generate in the storehouse of dryness storehouse (1) enters true through gas-guide tube (5)
In empty unit (4), moisture passes sequentially through the dust processing of vacuum pump set (4), after condenser condensation, moisture in vacuum pump pump drainage
Under discharge dryness storehouse (1)；
Discharge gate (6) are installed on the feed inlet (7) and discharge port (8) of the dryness storehouse (1)；
The belt conveyor (2) is mounted in dryness storehouse (1), and 1-8 group belt conveyors 2 are successively combined into one up and down；
The transmission belt of belt conveyor (2) is the bilevel carry out rotary work of upper layer transport band (9) and lower layer's transmission belt (10)；
The heating plate (3) is fixed by the bracket on the warehouse for being mounted on dryness storehouse (1)；It is defeated that heating plate (3) is mounted on belt
It send below the upper layer transport band (9) of machine (2), upper layer transport band (9) is attached to the upper surface of top plate (11) of heating plate (3)；
The heating plate (3), including top plate (11), bottom plate (12), side plate (16), heating device, thermally conductive item (13), thermally conductive work
Matter (15)；
It is to have insulating layer heat preservation, or there is no insulating layer on the outside of the bottom plate (12)；It is on the outside of side plate (16)
There is insulating layer heat preservation, or there is no insulating layer；
The shape of the side plate (16) is L-shape, and the plate face of side plate (16) lower end is to fold into, and the upper end of side plate (16) is straight shape
's；
The appearance of the bottom plate (12) is V-shape, and the wedge angle of V-shape bottom plate (12) is upward；Punching press on bottom plate (12)
There is reinforcing rib；
The lower end of the bottom plate (12) is connected to one by four pieces of side plates (16) and top plate (11)；Four pieces of sides of surrounding
Plate (16), which is sequentially connected, to be integrated, and the side plate (16) that the lower end of bottom plate (12) and four pieces of side plate (16) lower ends fold into is fixed
It is connected as one, the lower end of bottom plate (12) and the junction of side plate (16) lower end are a U-shaped grooves；
The lower end of the bottom plate (12) and the lower end of four pieces of side plates (16) are connected to one, four sides of top plate (11) and
The upper end of four pieces of side plates (16) is connected to one；
The thermally conductive item (13) is fixed below top plate (11), and it is one that thermally conductive item (13) is fixedly connected with top plate (11)
's；Thermally conductive item (13) is metal strip, and the spacing of adjacent thermally conductive item (13) and thermally conductive item (13) is 30-180mm；
Inside of the heat-conducting work medium (15) in heating plate (3)；
The heating device (14) is mounted on bottom plate (12) lower end and the side plate (16) of heating plate (3) inside of band drier
In the U-shaped groove of the junction of lower end；
The thermal energy import (17), thermal energy outlet (18) of described heating device (14) heat conducting pipe extend side panel (16) outside；Heating
The junction that the thermal energy import (17) of device (14), thermal energy export heat conducting pipe and side plate (16) at (18) is that fixing seal is impermeable
Gas；
Drying is extended in the thermal energy import (17), thermal energy outlet (18) of heating device (14) heat conducting pipe of the heating plate (3)
Storehouse (1), the thermal energy import (17) of heating device (14), thermal energy export the warehouse (19) of heat conducting pipe and dryness storehouse (1) at (18)
Junction be that fixing seal is air-locked；
The heat-conducting medium for carrying thermal energy is entered in heating device (14) by the thermal energy import (17) of heating device, and heat-conducting medium is taken
The thermal energy of band passes through heating device (14) to heat-conducting work medium (15) thermally conductive heating around heating device, thermally conductive rear heat-conducting medium
Thermal energy exports (18) discharge heating device (14)；
The heating plate (3) is a gravity assisted heat pipe, and the top plate (11) and thermally conductive item (13) of heating plate (3) are heat-conducting work mediums
(15) condensation segment, heating device (14) are the evaporator sections of heat-conducting work medium (15)；Heat-conducting medium after heating passes through heating device
(14) thermal energy import (17) enters the inside of heating device (14)；Heating device (14) provides thermal energy to heat-conducting work medium (15),
For the thermal energy conduction that heat-conducting work medium (15) carries on top plate (11) and thermally conductive item (13), thermal energy passes through the top plate of heating plate (3)
(11) it material to be dried that the heat-conducting mode of heat radiation and heat transfer is given on upper layer transport band (9) simultaneously while carrying out thermally conductive
Heating, material, which has obtained thermal energy, to be dried.
2. a kind of vacuum belt drier according to claim 1, it is characterised in that: vacuum pump set (4) includes at dust
Manage device, condenser, vacuum pump.
3. a kind of vacuum belt drier according to claim 1, it is characterised in that: discharge gate (6) be airlock and
Motor or wind stopping device and motor.
4. a kind of vacuum belt drier according to claim 1, it is characterised in that: the length of heating plate (3) is
2500-18500mm, width are 300-1800mm, and thickness is 50-180mm.
5. a kind of vacuum belt drier according to claim 1, it is characterised in that: heat-conducting work medium (15) is water, or
It is ether or composite work medium.
6. a kind of vacuum belt drier according to claim 1, it is characterised in that: heating device (14) has fin
Heat conducting pipe, or the not heat conducting pipe of fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711162242.0A CN109813085A (en) | 2017-11-21 | 2017-11-21 | Vacuum belt drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711162242.0A CN109813085A (en) | 2017-11-21 | 2017-11-21 | Vacuum belt drier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109813085A true CN109813085A (en) | 2019-05-28 |
Family
ID=66599461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711162242.0A Pending CN109813085A (en) | 2017-11-21 | 2017-11-21 | Vacuum belt drier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109813085A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508902A (en) * | 2022-01-27 | 2022-05-17 | 中国计量大学 | Storage type soil drying system for recycling waste heat of secondary combustion chamber and control method |
| CN115445225A (en) * | 2022-09-07 | 2022-12-09 | 天津科技大学 | Flat plate drying and concentrating device, method and application of nanofibrillar cellulose gel |
-
2017
- 2017-11-21 CN CN201711162242.0A patent/CN109813085A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508902A (en) * | 2022-01-27 | 2022-05-17 | 中国计量大学 | Storage type soil drying system for recycling waste heat of secondary combustion chamber and control method |
| CN115445225A (en) * | 2022-09-07 | 2022-12-09 | 天津科技大学 | Flat plate drying and concentrating device, method and application of nanofibrillar cellulose gel |
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| PB01 | Publication | ||
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Application publication date: 20190528 |